baber/WOPTO huggingface dataset:
Patent GB-459001-A (GB)
Title: Improvements in a variable speed planetary gear transmission
IPC: F16H13/10
Filed: 1935-11-22
Abstract: 459,001. Variable - speed friction planetary gearing. GRAHAM, L. A., 3029, North Summit Avenue, Milwaukee, Wisconsin, U.S.A. Nov. 22, 1935, Nos. 32405 and 32406. Convention dates, Nov. 28, 1934 and May 9, 1935. [Class 80 (ii)] Variable-speed gearing comprises planetary conical rollers 27 which roll round inside a non- revoluble track ring 29 which is moved axially to vary the speed. The rollers 27 are slidably splined on shafts 25 inclined at equal angles so that the extreme outer straight surfaces 271 of the cones move parallel to themselves whereby the traction friction with the track ring 29 is maintained. A planetary cage 19, 20 is loose on a driving-shaft 14 and supports a strong spring 31 which through a spider 30 thrusts the rollers 27 outwards along the shafts 25. Each shaft 25 carries a toothed pinion 24 meshing with a sun gear 23 fast on the shaft 14, and the gear teeth are preferably helical so that there will be an axial reaction assisting the spring 31 and centrifugal force to increase the traction with the ring 29. In the arrangement shown in Figs. 1 and 2, the driven element is an annulus 56 fast on a driven shaft 10, but in another arrangement, the cage 19, 20 is the driven element. The track ring 29 is adapted to float or yield in its own plane in any direction. It is held by a wedging ring 40 inside a ring 39 which is supported by diametrally disposed pins 41 in a middle ring 43 again supported upon a perpendicular diameter on keys 45 in a carrier ring 46. In changing speed, the track ring is carried along the cones 27 by precession. The carrier ring 46 is supported on a guide shaft 51 to which it can be clamped at 55. In changing speed, a screwed shaft 53 is turned by hand so as to bend the carrier ring 46 with the track ring 29 inclined over the surfaces 271. The ring 29 therefore creeps axially causing the carrier 46 to follow its nut lug 52 without any resistance.
Patent GB-268420-A (GB)
Title: A process for the production of concentrated solutions of alkali cyanides
IPC: C01C3/10
Filed: 1925-12-23
Abstract: 268,420. Deutsche Gold-und Silber- Scheideanstalt vorm. Roessler, and Andrich, K. Dec. 23, 1925. Alkali cyanides.-In the production of concentrated solutions of alkali cyanides by passing hydrocyanic acid into an aqueous mixture of alkali sulphate and lime, solutions of the order of 35-45 per cent are obtained by starting with a solution mixture which contains not more than 28 parts of sodium sulphate (or an equivalent quantity of potassium sulphate) per 100 parts of water, and continuing the addition of further alkali sulphate gradually, whereby precipitation of a double salt of alkali sulphate and calcium sulphate is prevented. Preferably the admission of hydrocyanic acid is continued after the alkali sulphate originally present has been converted to cyanide to form some calcium cyanide, which is then converted to alkali cyanide by further addition of alkali sulphate, excess of the latter being avoided, and the formation of calcium cyanide and its conversion to alkali cyanide being continued step by step until a solution of the required strength has been obtained. The whole of the lime used may be added at the start, or it may be added in portions at a time; in the latter case it must always be present in excess in relation to the sodium sulphate. The temperature during the course of the reaction may, according to examples, be allowed to rise to 40‹ C., or, in the treatment of the initial solution mixture, to 60‹ C., being thereafter reduced to 40‹ C.; or the absorption may be conducted at or below 15‹ C., the temperature being raised towards the end of, or after completion of, the reaction, to redissolve any deposited alkali cyanide. Specifications 4513/03, 174,364, and 245,152 are referred to.
Patent GB-637506-A (GB)
Title: Improved process of manufacturing substitutes for white of egg and of food products containing the said substitutes
IPC: A23C9/156
Filed: 1945-12-03
Abstract: A dry white of egg substitute is made by mixing skim milk powder with acid in such a quantity that a 15 per cent solution of the mixture in water is of pH 5.0-6.2, by mixing skim milk powder with an acid and a salt of an organic hydroxy acid in such quantities that a 15 per cent solution of the mixture in water is of pH 5.0-7.0, or by evaporating to dryness skim milk or concentrated skim milk soured by bacteria to pH 5.0-6.2, and containing, if desired, a salt of an organic hydroxy acid.  The dry substitute so prepared is dissolved in water, preferably to a 15 per cent solution, to produce a substitute for egg white. Alternatively, a 15 per cent solution of skim milk powder in water or a 5 per cent solution of casein in water rendered alkaline, e.g., by sodium bicarbonate, is admixed with an acid in such a quantity as to produce pH 5.0-6.2 or with an acid and a salt of an organic hydroxy acid in such quantities as to produce pH 5.0-7.0. Another edible salt, e.g., sodium chloride or a sodium phosphate, may be incorporated.  Examples are concerned with (i) a 15 per cent aqueous solution, having pH 5.8, of skim milk powder mixed with 3 per cent of sodium carbonate and 6 per cent of tartaric acid, (ii) a 5 per cent aqueous solution, having pH 6.2, of casein mixed with 10 per cent of sodium carbonate to which mixture has been added 1.2 per cent of citric acid, (iii) making meringues by whipping the solution of (i) to a froth and stirring powdered sugar into the froth, and (iv) making macaroons by baking a mixture of the solution of (i), ground blanched almonds and powdered sugar, flavoured with lemon or vanilla and decorated with sliced almonds.
Patent GB-1026566-A (GB)
Title: Sealed magnetic relay contact devices
Inventor: MYATT EDWARD RONALD
IPC: H01H51/28
Filed: 1965-07-30
Abstract: 1,026,566. Electromagnetic switches. STANDARD TELEPHONES & CABLES Ltd. Sept. 26, 1963, No. 32742/65. Divided out of 1,026,564. Heading H2B. A sealed magnetic contact device of the type disclosed in Specification 1,021,047 has a rectangular parallelepiped shape. It may be formed with two insulating caps 2, 3 (Fig. 1B, not shown), on opposite sides of a plate 1 which is slotted as disclosed in Specification 1,026,565 to form the resilient armature 4. A single device may contain two plates (Fig. 2, not shown), co-operating with separate fixed contacts. A number of devices may have a common operating coil and a common ferrite part (Fig. 3, not shown). Non-magnetic fixed contacts may be engaged by the armatures when the coil is de-energized.
Patent GB-996895-A (GB)
Title: Network for the thermal compensation of electric current regulators
IPC: G05F1/12
Filed: 1962-08-29
Abstract: 996, 895. Automatic current control. ZAVODY PRUMYSLAVE AUTOMATISACE NARODNI PODNIK. Aug.29, 1962 [Aug. 31,1961], No. 33085/62. Heading G3R. In an arrangement for supplying a load, e.g. aerodrome lamps 9, with a constant current from a source 8 in which feedback is derived from a device 6 which compares a reference 7 with the smoothed, rectified output of a current transformer 1, errors due to the effect of temperature on the smoothing choke 5 are avoided by a compensating network comprising a temperature sensitive impedance 10 with a positive characteristic connected effectively in parallel with the choke. The current transformer supplies three parallel circuits: - a loading impedance 2, the temperature sensitive element 10 with sines resistance 11 (temperature independent), and the circuit comprising the rectifier 4, series impedance 3 and choke 5. The ratio of 3 and 5,10 and 11 is chosen so that the shunting effect of 10,11 decreases to compensate for increasing impedance of choke 5.
Patent GB-1515147-A (GB)
Title: Calendar-watch movement
IPC: G04B19/253
Filed: 1975-08-08
Abstract: 1515147 Calendar watches FRANCE EBAUCHES SA 8 Aug 1975 [27 Aug 1974]  33190/75 Heading G3T In a calendar watch having a stem 8 axially movable between (A) winding, (B) calendar correcting and (C) time setting positions, and a clutch wheel 3 movable on the stem by means of a first rocker 21 so that the clutch wheel meshes in position (A) with a winding pinion 18 and in positions (B) and (C) with an intermediate wheel 2 mounted on a second rocker 1, the three positions of stem and clutch wheel being determined by a pull-out piece 17 with a pin 5 which co-operates with a notched check spring 23, the second rocker I is freely mounted and its positions are determined by its head profile 19 which co-operates with the pin 5 on the pull-out piece, and the arrangement is such that in positions (A) and (B) the intermediate wheel 2 and second rocker 1 occupy identical forward positions, and are retracted, to bring the intermediate wheel into mesh with the motion work, only when the stem is pulled out to position (C). Thus, in position (B) shown, the intermediate wheel couples the clutch wheel 3 to a calendar correction wheel 6; rocker 1 is omitted from Fig. 3 for clarity. Clockwise rotation of the stem then causes advance of wheels 11-13 and thus of a day disc 14, while anti-clockwise rotation displaces the wheel 6 in slot 10 for correction of a date ring 9. In position (C), the wheels 2, 3 remain in mesh but the wheel 2 then meshes with wheel 4 of the motion work, Figs. 6, 7, (not shown).
Patent GB-1512681-A (GB)
Title: Arrangement comprising an electromagnetic wave filtering grid
IPC: H01Q15/00
Filed: 1975-08-08
Abstract: 1512681 Multi-band aerial system THOMSONCSF 8 Aug 1975 [9 Aug 1974] 33249/75 Heading H4A [Also in Division H1] A multi-band aerial system comprises an e-m wave filter grid of substantially uniformly spaced metal elements on a dielectric substrate, the grid being transmissive to a first frequency band and reflective to a second, higher frequency band. First and second primary feeds direct first and second beams, respectively in the two frequency bands, onto respective opposed faces of the grid such that on leaving the grid the two beams merge into a resultant beam, outside the path of which the second primary feed is located. Fig. 4 shows a Cassegrain system of mirrors 80, 81, scanning in azimuth and elevation, onto which the resultant beam is directed by mirror 82. Grid 86 reflects the higher frequency band, fed from source S2 via mirrors 88, 87, and passes the lower frequency band, fed from source S1 via mirrors 85, 84, 83. In the Fig. 7 embodiment the filter grid 31 in horn 30 combines the beams from a dual-band high frequency (11 and 14 GHz bands) multiplexer-demultiplexer 33 with the beams from a dual-band low frequency (4 and 6 GHz) multiplexer-demultiplexer 32. An embodiment using a plane filter grid and plane mirrors instead of the curved grid 86 and curved mirrors 83, 84, 87 is described (Fig. 5, not shown). In other embodiments the filter grid forms a curved wall of a horn (Fig. 2, not shown) or is used to direct the resultant beam upward to a mast-supported mirror which is angled to direct the resultant beam horizontally (Fig. 3, not shown).
Patent GB-1210978-A (GB)
Title: Reversing device for operating a double action valve
Inventor: HINTON KENNETH JAMES
IPC: F01L23/00
Filed: 1968-07-12
Abstract: 1,210,978. Hydraulic reciprocating motors. COOPER RULE ENG. (FRECKENHAM) Ltd. July 12, 1968, No.33302/68. Heading F1A. When a double-acting hydraulic ram (not shown) reaches the end of a stroke, a rod 10 movable by the ram and having stops 11, causes rotation of an arm 8 from an end position A or B to beyond the medial position shown, whereafter biasing means causes the arm to snap over to its other end position, the rotation of the arm being imparted to a lever 3 for reversing a valve 1 controlling the ram. The movement of the arm 8 is imparted to the lever 3 through a pin 5 fixed to the lever and disposed in an arcuate slot in a quadrant portion 7 of the arm 8. As shown, the biasing means is a weight 9 but springs may be used instead. A manually operated over-riding lever 12 is fixed to the lever 3.
Patent GB-1269639-A (GB)
Title: Preparation of sodium ammonium polyvanadate and ammonium metavanadate
Inventor: SIKORSKI ROMAN RAJMUND
IPC: C01G31/00
Filed: 1968-07-12
Abstract: 1,269,639. Sodium ammonium polyvanadate; ammonium metavanadate. MUREX Ltd. 28 May, 1969 [12 July, 1968], No. 33498/68. Heading C1A. Sodium ammonium polyvanadate is prepared by a continuous process by adding a soluble ammonium salt to a sodium vanadate solution while maintaining the temperature below 50‹ C. and the pH in the range 4-5. The initial Na vanadate solution may be treated with H 2 SO 4  to precipitate SiO 2  which may be removed in a filter press, and the pH further adjusted to 3À5-5À5 by addition of H 2 SO 4 . The ammonium salt is preferably NH 4 Cl and the pH may be maintained at 4-5 by addition of NH 4 OH. The product may be filtered, dried at below 60‹ C., and washed with dilute NB 4 Cl solution. The formula of the product may be where x is 8-13. The polyvanadate may be slurried and treated with an ammoniacal solution of NH 4 Cl to form ammonium metavanadate.
Patent GB-971093-A (GB)
Title: Copper phthalocyanine pigments crystallisation and flocculation-resistant in the ª‡-form and process for their manufacture
IPC: C09B67/00
Filed: 1960-09-29
Abstract: The invention comprises copper phthalocyanine pigments in the a -form in a state of dispersion suitable for pigmenting purposes which comprise intimate mixtures of 0.5-10% of manganese phthalocyanine and if desired 0.5-10% of other metal phthalocyanines, the balance to 100%, but at least 80% being copper pthalocyanine and/or copper monochloro- or monobromo - phthalocyanine.  Other metal phthalocyanines mentioned are those of tin, aluminium, magnesium, titanium and vanadium, for example dichloro- and dihydroxy-tin phthalocyanines.  Instead of manganese phthalocyanine itself, monochloro-manganese phthalocyanine may be used.  The pigments are made by grinding the a - or b -forms of copper phthalocyanine and/or copper monochloro- or monobromo-phthalocyanine, manganese phthalocyanines and the other metal phthalocyanine if any, to produce the a -form and a state of dispersion suitable for pigmenting purposes before, during or after mixing them together.  Grinding may be conducted in the presence of an inorganic or organic salt or a solid organic compound capable of subliming and mixing may be effected by grinding or synthesizing the phthalocyanines together.  A mixture of the pigments in b -form may also be converted to a -form by prolonged heating in dilute sulphuric acid.  Examples are given. The pigments are crystallization- and flocculation-resistant. Specifications 851,494 and 971,044 are referred to.
Patent GB-1514254-A (GB)
Title: Radial piston machine
IPC: F03C1/24
Filed: 1975-08-12
Abstract: 1514254 Reciprocating pumps and motors DANFOSS AS 12 Aug 1975 [14 Sept 1974]  33574/75 Heading F1A In a radial piston pump or motor wherein the ends of the pistons 11 project outwardly or inwardly from their cylinders 10 into sliding contact with an external or internal cam track 6, an annular resilient member 16 urges the ends of the pistons into sliding engagement with the cam track. The annular member is produced from a strip of spring steel bent into a polygon, the ends thereof being joined by riveting. A slot (19) is formed at each corner of the member for the passage of a respective piston, the latter being provided with a shoe having a flange 20 against which the annular member bears. The cam track 6 is pivotable about a shaft 4.
Patent GB-810689-A (GB)
Title: Method of treating protein meal of marine origin
IPC: A23J3/00
Filed: 1956-11-05
Abstract: 810,689. Conditioning fish &c. meals. MARSTRAND, A. J. S. Nov. 5, 1956 [Nov. 5, 1955], No. 33653/56. Class 49. Protein meal of marine animal origin, such as fish, especially herring, fish offal, and whale meat meals, are made more stable in storage by a preliminary treatment entailing passage of gas upwards through the meal in a bin, the gas being of temperature 35-60 ‹ C. and of humidity sufficient to prevent drying of the meal. Preferably, the gas is supplied non-uniformly over the bottom of the bin to mix the meal. With the apparatus of Figs. 1 and 2, heated air moistened with steam, or air heated and moistened by furnace gases and further moistened by steam, is supplied by a pipe 24 to nozzles 31 under a gaspermeable plate 30 forming the circular bottom of a covered bin 10 of meal, and the gases leaving the top of the bin through outlets 13 are, if desired, recirculated by a pipe 17 to the nozzles 31; on supplying gas at greater pressure to the nozzles under quadrant A, the meal particles thereover are set in motion and mixed, and they accumulate over quadrants B, C and D; the gas may then be supplied at greater pressure to the nozzles under quadrant B, and so on, to complete the mixing.
Patent GB-1496756-A (GB)
Title: Doppler radar equipments
IPC: G01S7/285
Filed: 1965-08-05
Abstract: 1496756 Pulse radar SIEMENS AG 5 Aug 1965 [11 Nov 1964] 33659/65 Heading H4D In a pulse Doppler radar an emitted signal frequency is derived by mixing a signal frequency derived from a first frequency f 1  produced by a main oscillator O 1  with a signal frequency f 2  produced by an auxiliary oscillator O 2 , and the echo signal is mixed with a further signal frequency also derived from the first frequency produced by the main oscillator to afford a resultant intermediate frequency signal which contains the Doppler shift together with the second frequency or integral multiples thereof only, any frequency derived from the first frequency being eliminated. In the embodiment both oscillators are crystal-controlled. Spurious target signals are eliminated.
Patent GB-913649-A (GB)
Title: Improvements in or relating to 6-methyl-ergolene derivatives
Filed: 1959-10-05
Abstract: Basically substituted 6 - methylergolene-(9) derivatives of the general formula <FORM:0913649/IV (b)/1> (wherein R represents a 6-methylergolen-(9)-yl-(8) or 6-methylisoergolen-(9)-yl-(8) radical) are produced by reduction with lithium aluminium hydride of a lysergic or isolysergic acid piperidide of the general formula <FORM:0913649/IV (b)/2> The products may be converted into acid addition or quaternary ammonium salts.
Patent GB-336960-A (GB)
Abstract: 336,960. Dreyfus, H. July 22, 1929. Acetic and other aliphatic anhydrides are made by heating the vapour of the acid in contact with an oxide or acid of arsenic or antimony or a salt of such acid. The bodies mentioned are the trioxide and pentoxide of arsenic and antimony and arsenates and antimonates such as sodium, potassium, calcium and magnesium arsenates, sodium and potassium antimonates or mixtures of such substances. The acid vapour may be passed through a fireclay, silica, copper, &c. tube containing the catalyst, which may be in solid or liquid state when non-volatile, and may be supported upon or mixed with filling material such as pumice, Kieselguhr or carborundum in the form of balls or pieces. When the catalyst is volatile, a mixture of the catalyst (for instance arsenic trioxide) and the acid vapour may be passed through heated tubes', &c. which may contain one of the non-volatile catalysts' or a filling-material; or a mixture of the volatile catalyst and the liquid acid may be injected into a hot reaction zone. The reaction may be effected under ordinary, reduced, or increased pressure, and known catalysts may be employed in addition, whether volatile or non-volatile. The anhydride is separated from the reaction product in any suitable way, for instance by the processes described in Specifications 256,663, 279,916, 289,972, 298,667, 303,772, and 310,863. In an example, acetic acid vapour is passed through a copper or fireclay tube containing sodium antimonate upon balls or pieces of pumice or Kieselguhr.
Patent GB-812911-A (GB)
Title: Improvements in or relating to fluid turbines
Inventor: TROWBRIDGE DAVID ROY
IPC: F01D21/02
Filed: 1954-11-22
Abstract: 812,911. Wind motors. PLESSEY CO. Ltd. Feb. 1C, 1956 [Nov. 22, 1954], No. 33716/54. Class 110 (3). A turbine operated by ram air has means to reduce the cross-section of an aperture through which the driven fluid must pass which includes a plurality of baffle plates arranged for substantially radial translatory sliding movement relative to the rotor of the turbine. The turbine rotor blades 5 are supplied with air through an annular duct 1 facing the air stream. The rotor is mounted on a bearing 6 fixed in a housing 3 and drives through a shaft 7 an hydraulic pump 8. To prevent the turbine speed rising unduly when the air speed is high or the load low, a set of baffle elements 10 are provided in front of the rotor blades 5. Each element carries two pins 11, the opposite ends of which engage slots 12 or 13 and 14 or 15 of two side plates 16, 17. The plate 17 is fixed in the housing 3 whilst the other plate 16 is rotatable by a centrifugal governor 18 acting through a nut 19 which engages a thread 20 on a sleeve 21 fixed in the housing 3.
Patent GB-800496-A (GB)
Title: Voltage to pulse number converter
IPC: G06J1/00
Filed: 1955-11-24
Abstract: 800,496. Automatic voltage control systems. VICTOR ADDING MACHINE CO. Nov, 24, 1955 [Jan. 20, 1955], No. 33718/55. Class 38 (4). [Also in Groups XXXVI, XXXVIII and XL (c)] A voltage stabilizer for a triggered phantas -  tron gating circuit comprises a resistance potential divider 118, 120, 122, 124, 126 connected between the supply lines 106, 108 at potentials of + 250 V. and - 150 V. respectively; the line 136 being connected to the junction of 122, 124 to develop a voltage of + 100 V. which is stabilized by pentode 164, whose control grid is energized by a resistancecapacitance smoothed proportionate voltage from the junction 124, 126, whose screen is returned to line 136, and whose anode is energized from + 250 V. line 106 over resistance 170 while its cathode is earthed. The amplified anode voltage is directly coupled to the grid of triode 162 whose anode is connected to the B + line 106 and cathode to the 100 V. line 136, whereby the voltage on the latter is varied in response to the triode current in such sense as to compensate for variations of line voltage from its standard value.
Patent GB-662432-A (GB)
Title: Optical system
IPC: H04N5/74
Filed: 1946-11-14
Abstract: 662,432. Television. PHILCO CORPORATION. Nov. 14, 1946 [Nov. 14, 1945], No. 33818/46. Class 40 (iii). [Also in Group XX] The fluorescent screen of a cathode-ray tube in a television receiver may have kinematographic or still images projected thereon and an optical system, which may be a concave mirror, is provided to project the image on the fluorescent screen on to a viewing screen. As shown, television images on the fluorescent screen 15 of tube 11 are projected on to a screen 16 by a concave mirror 13 and Schmidt correcting-plate 14. A kinematograph projector may project an image on to the screen 15 through an aperture 20 in the mirror, which mirror relays the image to the screen 16, the screen 15 being sufficiently reflecting for this purpose, A negative lens, or other means, may be provided to curve the projected image to the spherical curvature of the screen 15. A projection cabinet is described in which the planes of the screen 16 and film 19 are parallel to the axis of the mirror, plane mirrors being used to direct the two projected beams. Alternatively the beam from the mirror 13 may be reflected on to a screen curved as described in Specifications 6077/48, 6078/48, as open to inspection under Sect. 91, the axes of the projector 18 and screen 15 being so inclined as to correct distortion.